Cut long lines at ~ 70 chars

Set to 101 line length
because there is quite a lot ending at 101 chars
In .flake8, because pyproject.toml is not yet supported

black was broken

by merge conflict resolution

verify: Switch from Client(determine_endpoint) to client_instance()
which was an experiment, switched since this solution is great!

Remove membership exit_code test

membership test is sometimes failing now
testing if sending membership document get send to
the network should fail is not an important part of the test

These tests are sometimes returing error sometimes not
This is about testing that sending a membership doc fails
because its invalid

blockchain_tools: head_block, params

Fix -ep option

pre-commit-hooks, mdformat, insert-license
Use small option: --all-files/-a

Ignore g1_monetary_license

Change in the CI, changes in the documentation

Enable branch check in release.sh, can be commented for releases
on other branches for maintenance releases.

https://docs.pytest.org/en/latest/changelog.html#pytest-7-0-0rc1-2021-12-06
https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst#300-2021-10-04

Fix typo in v0.9.0 announcement

It doesn’t makes sense to keep displaying outdated license
From the console display of files, there is six languages versus two from websites
Less code means less maintenance